Improved apparatus fob bleaching with sulphite-fumes



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A. J. CROSBY AND o. W.. CROW,` oF'BLUFFToN, INDIANA.

Letters PatentNo. 74,898, ated 'February 25, 1868."

IMPROYED APPARATUS FOR -B LEACHING WITH SULPHUR-FUMES.

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T ALL WHOM IT MAYCONCERN:

Be it known that we, Mrs. A. J. CROSBY and 0. W. Chow, of Bluffton, inthe-county of Welle, and irr the State of Indiana, have invented` a. certain Vnew and useful Improvement in Bleaching-Apparatus; and we do hereby declare` that the following is n full, clear, and exact description thereof, reference-being had to the accompanying drawings, and tothe letters of referencemarlted thereon.: i

In the annexed drawings, making part of this specifioation, A represents a bleaching-box, which is made of any suitable size. This box has no openings in it. except thedoors, through which articles are'introduced` and removed. B B represent the doors to this box. The edgesof these doors are bevelled, und so are the sides oi' the-doorway, so that the doors may be made to fit so snugly that: no vapor or smoke can escape from the box.v E E represent a series of bers, which are placed across the box, nearI its top. with their ends resting upon suitable clcats, secured to the sides of the box. These bars are provided withb'pins or hooks, for the pur. pose of suspending the articles upon which are Yto be bleached; C represents a. metallic-pot, which contains the sulphur for bleaching.v This pot sitsupona tripod, whxchis secured to the bottom of the box; This pot has a small opening in its mouth, which 'is covered` when desirable, by-means of a. elidefD. This slide has its edges bevelled, and passes intodove-tail grooves in the top o t the pot, so that it may be made to lit so snugly that no vapor can escape when it is` not desirable that it should. Sulphur is placed in the vessel or pot C, and the articles to be bleached are hung upon the pins ofthe cross-bars E E. The sulphur is first melted, and then, while hot, Vthe pot is placed upon the tripod. The cover D is then removed, so as to allow the vapor to rise, and the doors B B nre closed and secured. Fire vmay vbe placed under the tripod, to keep' the sulphur vaporizing. When the articles `have been sufficiently subjected to the action of the sulphur, the doors are opened, the pot C is closed, and4 the articles areiremoved from the box. i l

This box can bo made light and portable, so that it can be used easily by milliners or hatters in bleaching bonnets-'and hats and other small articles. g

We are fully aware that bleaching has long been done by the fumes oi' sulphur. Qur ideas are torconstruct a neat, handy,'and portable device, that can be Within the reach of persons requiring bleaching-'to be done. i

The box AVwith the doors B B vessel C, having a. regulating-slide, D, and the bars E'E, the whole combined, arranged, and used in the mannerand forthe purposes specified.

In testimony that we claim the foregoing, we beve hereunto set ourhands and seals, this 19th day of August, i867.

l A. J. CROSBY. [simu] O. W.l CROW. [SEAL] -Witnesses:

S. M. vBAILEY, J. A. Cowon. 

